Recently a new clustering algorithm called 'affinity propagation' (AP) has been proposed, which efficiently clustered sparsely related data by passing messages between data points. However, we want to cluster ...Recently a new clustering algorithm called 'affinity propagation' (AP) has been proposed, which efficiently clustered sparsely related data by passing messages between data points. However, we want to cluster large scale data where the similarities are not sparse in many cases. This paper presents two variants of AP for grouping large scale data with a dense similarity matrix. The local approach is partition affinity propagation (PAP) and the global method is landmark affinity propagation (LAP). PAP passes messages in the subsets of data first and then merges them as the number of initial step of iterations; it can effectively reduce the number of iterations of clustering. LAP passes messages between the landmark data points first and then clusters non-landmark data points; it is a large global approximation method to speed up clustering. Experiments are conducted on many datasets, such as random data points, manifold subspaces, images of faces and Chinese calligraphy, and the results demonstrate that the two ap-proaches are feasible and practicable.展开更多
As a result of computer invention, especially the internet, changes have occurred in all walks of life in the global era including the marketing communication strategies which are inseparable parts of marketing and bu...As a result of computer invention, especially the internet, changes have occurred in all walks of life in the global era including the marketing communication strategies which are inseparable parts of marketing and business. This intensifies the role of marketing communication in achieving business goals. Furthermore, the established and successful philosophy, strategy, technique, and theories of marketing communication in the past are now outdated and unfit for achieving wanted business goals in this information technology era. Besides, information technology inventions have changed people＇s lifestyle especially the global consumer attitude which is responsible for the commotion in today＇s implementation of global marketing communications strategies. This paper examines the implementation of ideas that are considered responsive to the changes of conditions in the past three decades and the future which are completely different with the past development and implementations. This paper illustrates the changes that have occurred in the implementation of integrated marketing communications studies. This paper supports the assumption that integrated marketing communications is considered the business strategy that is able to overcome the present and future global market era challenges展开更多
基金the National Natural Science Foundation of China (Nos. 60533090 and 60603096)the National Hi-Tech Research and Development Program (863) of China (No. 2006AA010107)+2 种基金the Key Technology R&D Program of China (No. 2006BAH02A13-4)the Program for Changjiang Scholars and Innovative Research Team in University of China (No. IRT0652)the Cultivation Fund of the Key Scientific and Technical Innovation Project of MOE, China (No. 706033)
文摘Recently a new clustering algorithm called 'affinity propagation' (AP) has been proposed, which efficiently clustered sparsely related data by passing messages between data points. However, we want to cluster large scale data where the similarities are not sparse in many cases. This paper presents two variants of AP for grouping large scale data with a dense similarity matrix. The local approach is partition affinity propagation (PAP) and the global method is landmark affinity propagation (LAP). PAP passes messages in the subsets of data first and then merges them as the number of initial step of iterations; it can effectively reduce the number of iterations of clustering. LAP passes messages between the landmark data points first and then clusters non-landmark data points; it is a large global approximation method to speed up clustering. Experiments are conducted on many datasets, such as random data points, manifold subspaces, images of faces and Chinese calligraphy, and the results demonstrate that the two ap-proaches are feasible and practicable.
文摘As a result of computer invention, especially the internet, changes have occurred in all walks of life in the global era including the marketing communication strategies which are inseparable parts of marketing and business. This intensifies the role of marketing communication in achieving business goals. Furthermore, the established and successful philosophy, strategy, technique, and theories of marketing communication in the past are now outdated and unfit for achieving wanted business goals in this information technology era. Besides, information technology inventions have changed people＇s lifestyle especially the global consumer attitude which is responsible for the commotion in today＇s implementation of global marketing communications strategies. This paper examines the implementation of ideas that are considered responsive to the changes of conditions in the past three decades and the future which are completely different with the past development and implementations. This paper illustrates the changes that have occurred in the implementation of integrated marketing communications studies. This paper supports the assumption that integrated marketing communications is considered the business strategy that is able to overcome the present and future global market era challenges
